Dr James Chappell: Publications

Proton-driven plasma wakefield acceleration in AWAKE.

Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences The Royal Society 377:2151 (2019) 20180418

Authors:

E Gschwendtner, M Turner, E Adli, A Ahuja, O Apsimon, R Apsimon, A-M Bachmann, F Batsch, C Bracco, F Braunmüller, S Burger, G Burt, B Buttenschön, A Caldwell, J Chappell, E Chevallay, M Chung, D Cooke, H Damerau, LH Deubner, A Dexter, S Doebert, J Farmer, VN Fedosseev, R Fiorito, RA Fonseca, F Friebel, L Garolfi, S Gessner, B Goddard, I Gorgisyan, AA Gorn, E Granados, O Grulke, A Hartin, A Helm, JR Henderson, M Hüther, M Ibison, S Jolly, F Keeble, MD Kelisani, S-Y Kim, F Kraus, M Krupa, T Lefevre, Y Li, S Liu, N Lopes, KV Lotov, M Martyanov, S Mazzoni, VA Minakov, JC Molendijk, JT Moody, M Moreira, P Muggli, H Panuganti, A Pardons, F Peña Asmus, A Perera, A Petrenko, A Pukhov, S Rey, P Sherwood, LO Silva, AP Sosedkin, PV Tuev, F Velotti, L Verra, VA Verzilov, J Vieira, CP Welsch, M Wendt, B Williamson, M Wing, B Woolley, G Xia

A compact electron injector for the EIC based on plasma wakefields driven by the RHIC-EIC proton beam

ArXiv 1907.01191 (2019)

Authors:

James Chappell, Allen Caldwell, Matthew Wing

A compact electron injector for the EIC based on plasma wakefields driven by the RHIC-EIC proton beam

Sissa Medialab Srl (2019) 219

Authors:

James Chappell, Allen Christopher Caldwell, Matthew Wing

FLASHForward: plasma wakefield accelerator science for high-average-power applications.

Philosophical Transactions of the Royal Society A Royal Society 377:2151 (2019) Article:20180392

Authors:

R D'Arcy, A Aschikhin, S Bohlen, G Boyle, T Brümmer, J Chappell, S Diederichs, Brian Foster, MJ Garland, L Goldberg, P Gonzalez, S Karstensen, A Knetsch, P Kuang, V Libov, K Ludwig, A Martinez De La Ossa, F Marutzky, M Meisel, TJ Mehrling, P Niknejadi, K Põder, P Pourmoussavi, M Quast, J-H Röckemann, L Schaper, B Schmidt, S Schröder, J-P Schwinkendorf, B Sheeran, G Tauscher, S Wesch, M Wing, P Winkler, M Zeng, J Osterhoff

Abstract:

The FLASHForward experimental facility is a high-performance test-bed for precision plasma wakefield research, aiming to accelerate high-quality electron beams to GeV-levels in a few centimetres of ionized gas. The plasma is created by ionizing gas in a gas cell either by a high-voltage discharge or a high-intensity laser pulse. The electrons to be accelerated will either be injected internally from the plasma background or externally from the FLASH superconducting RF front end. In both cases, the wakefield will be driven by electron beams provided by the FLASH gun and linac modules operating with a 10 Hz macro-pulse structure, generating 1.25 GeV, 1 nC electron bunches at up to 3 MHz micro-pulse repetition rates. At full capacity, this FLASH bunch-train structure corresponds to 30 kW of average power, orders of magnitude higher than drivers available to other state-of-the-art LWFA and PWFA experiments. This high-power functionality means FLASHForward is the only plasma wakefield facility in the world with the immediate capability to develop, explore and benchmark high-average-power plasma wakefield research essential for next-generation facilities. The operational parameters and technical highlights of the experiment are discussed, as well as the scientific goals and high-average-power outlook.

Experimental Observation of Proton Bunch Modulation in a Plasma at Varying Plasma Densities

Physical Review Letters American Physical Society (APS) 122:5 (2019) 054802

Authors:

E Adli, A Ahuja, O Apsimon, R Apsimon, A-M Bachmann, D Barrientos, MM Barros, J Batkiewicz, F Batsch, J Bauche, VK Berglyd Olsen, M Bernardini, B Biskup, A Boccardi, T Bogey, T Bohl, C Bracco, F Braunmüller, S Burger, G Burt, S Bustamante, B Buttenschön, A Caldwell, M Cascella, J Chappell, E Chevallay, M Chung, D Cooke, H Damerau, L Deacon, LH Deubner, A Dexter, S Doebert, J Farmer, VN Fedosseev, G Fior, R Fiorito, RA Fonseca, F Friebel, L Garolfi, S Gessner, I Gorgisyan, AA Gorn, E Granados, O Grulke, E Gschwendtner, A Guerrero, J Hansen, A Helm, JR Henderson, C Hessler, W Hofle, M Hüther, M Ibison, L Jensen, S Jolly, F Keeble, S-Y Kim, F Kraus, T Lefevre, G LeGodec, Y Li, S Liu, N Lopes, KV Lotov, L Maricalva Brun, M Martyanov, S Mazzoni, D Medina Godoy, VA Minakov, J Mitchell, JC Molendijk, R Mompo, JT Moody, M Moreira, P Muggli, C Mutin, E Öz, E Ozturk, C Pasquino, A Pardons, F Peña Asmus, K Pepitone, A Perera, A Petrenko, S Pitman, G Plyushchev, A Pukhov, S Rey, K Rieger, H Ruhl, JS Schmidt, IA Shalimova, E Shaposhnikova, P Sherwood, LO Silva, L Soby, AP Sosedkin, R Speroni, RI Spitsyn, PV Tuev, M Turner, F Velotti, L Verra, VA Verzilov, J Vieira, H Vincke, CP Welsch, B Williamson, M Wing, B Woolley, G Xia

91̽��